jostling blazer

A man in a bright white blazer hustling along at a jog in nice shoes; in the street. The November darkness swallows his black and bearded figure, save for his brilliant jacket.
Why is he not on the sidewalk, a half-dozen metres away? He’s on the wrong side of the car wall.
(That’s their home and it’s dangerous to be in it. One may dart across, nimbly, without hesitation, should the way be clear and such an act IN NO WAY interfere with traffic.
Even the pitiful Cyclist will yell, or ring his feeble bell should you be caught in combat with the Rule of the Road (thus such an act conveys a potent shame indeed!))